Heating system.



No. 784,073. PATENTED MAR. '7, 1905. F. W. ROBBRTSHAW.

HEATING SYSTEM.

APPLICATION FILED JUNE 22,1901.

2 SHEETS-SHEET 1.

INVENTOR, WKVF 4M9 wwm PATENTED MAR. '7, 1905u F. W. ROBERTSHAW.

HEATING SYSTEM.

AYPLIOATION FILED JUNE 22.1901.

2 SHEETS-SHEET 2.

[II/III/IIIIII INVENTOR.

WITNESSES;

pm STATE Patented March '1, 1905.

PATENT ()FFICE.

HEATING SYSTEM.

SPECIFICATION forming part of Letters Patent No. 784,073, a d March 7, 1905.

Application filed June 22, 1901. Serial No. 65,565.

To 111/ whom, 71/; many con/c0771]:

Be it known that], FREDERICK W. R(')ll ]lt'l- SHAW, a citizen of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Heating Systems, of which the following is aspecification, reference being had therein to the accompanying drawings.

This invention relates to heating systems, and has particular re fercnceto improved means for regulating the consumption of fuel by the deu'iands upon the heat-generator. In its preferred form the invention finds embodiment in a system provided with several heat-distributing points or stations having controlling connection independent of the heat medium with a burner or generator having independentlycontrolled sections.

The invention consists in the novel structural features and combination of parts hereinafter fully described and claimed, and illustrated by the accompanying drawings, wherein Figure 1 is a view of a furnace and part of a building having registers connected to the furnace-burner in accordance with my invention. Fig. 2 is a top plan view of the burner. Fig. 3 is a sectional view of a burner-section and controlling mechanism, together with a register and the intervening connections. Fig. 4 is a sectional view of the register-actuated controlling-valve. Fig. 5 is a detail view of the valve.

Referring to the drawings, the burner consists of a series of perforated burner-tubes 2, constructed with the usual open mixer ends 3, and a pilot or lighter tube 4:, which extends across the forward ends of the tubes 3 and burns constantly while the furnace isin operation, thus serving to light tubes 3 as gas is admitted thereto in manner presently to be explained.

5 is the gas-supply pipe, provided with aseries of vertically-projecting tubes (5, and mounted on each of these tubes is the valve-casing or shell 7, containing the diaphragm-valve 8, the latter dividing the cavity of said valve body into upper and lowercompartments 9 and 10. Lower compartment 10 is provided with the I gas-emitting nozzle 11, of smaller bore than tube 6, which discharges into the mixer end of one of burners 2, there being a separate diaphragm'valve and connections for each of said tubes, with each of said valves and their burner-tubes operating in conjunction with a hot-air register 12.

Secured to the frame of register 12 is a 'alve-easing 13, and leading from the latter are the two tubes 14 and 15, the former being connected to the upper valve-compartment 9, and tube 15 leading to the mixer end of burnertube 2.

16 is a plug-valve in casing 13, provided with depressions 17, adapted to place pipes 14 and 15 either in or out of communication. Said valve is engaged by the extremity of short shaft 18, upon which is mounted the register-operating quadrant 19, of usual construction. The engagement of shalf 18 with the valve is somewhat loose, so that the position of the valve will not be aflected by slight jolts or knocks occasioned, for example, by walking over floor-registers. The arrangement is such that the valve opens and closes with the register.

Each of tubes 6 projects upward into valvebody 7, and theupper extremity thereof forms a seat (5,upon which diaphragm-valve 8 closes. Said valve is formed with an aperture 8 in line with tube 6 and smaller than the bore thereof. Extending transversely through each of said tubes is an apertured screw 20 for the purpose of graduating or regulating the How of gas therethrough.

The operation is as follows: 'ith the register and valve 16 open, as in Fig. 3, the pressure or head of gas holds diaphragm 8 raised from seat 6, and the gas flows freely from the latter to the burner through nozzle 11. The gas which passes upward through valveaperture 8 is conducted to the burner through tubes 14 and 15. WVhen the register is closed, pipes 14: and 15 are placed out of connnunication by the turning of valve 1t, and the upper end of tube 14 being closed the accumu lation of gas therein and in upper valve-compartment 9, flowing thereinto through aperture 8, immediately equals or exceeds the prcssu re in comparti'nent 10 at the under side particularly well adapted for hot-air furnaces of the diaphragm, which is open to the atmosphere through nozzle 11, with the result that valve 8 lowers and rests on seat 6', cutting off the supply of gas to the burner-tube 2, with which it cooperates. hen the register is again opened, valve 8 is lifted by the pressure of gas, as before described, and the gas flows to tube 2 and is lighted by the constantly, burning pilot-burner 4'. The burner is positioned within the fire -boX or combustionchamber of the hot-air furnace, (not shown,) and the several tubes 2 thereof are each connected to a separate register located in the different rooms of the house, so that a greater or less number of tubes 2 are caused to burn, according to the number of registers from which heat is desired. Thus if all registers operatively connected to the furnace-burner are open the burner will be working at its full capacity, and if the furnace is right as to size and the adjustments carefully made there should be suflicient heat for the entire house. If heat is desired in only some of the rooms, the consumption of gas and the volume of hot air are proportionately reduced. pilot-burner 4 burns constantly while the furnace is in use and generates suflicient heat to keep the furnace warm and under ordinary conditions should supply enough for one or more hall or other registers which are con stantly open.

A valved by-pass 21 may lead from upper valve-compartment 9 to tube 2, whereby the several burner-sections may be tested and whereby they may be operated independently of the connected registers.

My improved system of burner-control is as the heat-fines form ready passages in many instances for the tubes leading from the burner to the registers.

While my improvement has been shown and described in connection with hot-air heating apparatus it will be understood that this is only one of several adaptations thereof. The invention contemplates, broadly, an operative connection between a furnace-burner and the several registers, radiators, or other heat-distributing points, whereby the consumption of fuel is regulated by the demands upon the furnace.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. Ina heating system, a furnace, registers for discharging heat therefrom, a furnaceburner composed of several independentlycontrolled burner -sections, and controlling devices for the respective burner-sections extending to and operative at the several registers.

2. In a heating system, a burner composed of several independently-controlled burnersections, .a plurality of stations for emitting heat generated by the burner, and a plurality i The of correspondinglylocated controlling devices operatively connected, respectively, to the several burner-sections.

3. The combination ofacasing, adiaphragm dividing the same into two compartments, the diaphragm being provided with a gas-passage, a valved outlet for one of said compartments, and a gas-inlet and a burner connected with the other compartment, the diaphragm cooperating with the gas-inlet and operating to close the same under pressure of accumulated gas in the compartment having the valved outlet when the valve thereof is closed.

4c. The combination of a burner formed of a plurality of independently-controlled burnersections, a plurality of stations for emitting heat generated by the burner, opening and closing mechanism for each of said stations, a separate gas-supply for each burner-section, and a valve operatively connected to each of said opening and closing mechanisms for separately controlling the gas-supply to each of the burner-sections.

5. The combination of a burner formed of a plurality of independently-controlled burnersections, a separate gas-admission diaphragmvalve for each burner-section,a gas-inlet which the diaphragm operates to close, the diaphragm having a gas-passage in line with said inlet, a plurality of stations for emitting heat generated by the burner,a tube extending from the unseated side of the diaphragm of each of said valves, a valve in each tube, and operative connections between said tube-valves and the opening and closing mechanisms of said heat-emitting stations.

6. The combination of a burner, a gas-admission diaphragm-valve therefor adapted at one side thereof to admitgas to the burner and formed with a gas-passage, and a valved gas-outlet and the valved by-pass 21 at the opposite side of the diaphragm.

7 The combination of a gas-burner, a source of gas-supply, and regulating mechanism intermediate the source of supply and burner, said mechanism consisting of a chamber, a diaphragm dividing the chamber into upper and lower compartments, the lower compartment communicating with the gas-supply and with the burner, the diaphragm being constructed and arranged to close the gas-supply orifice, a pipe extending from the upper compartment of said chamber, stations for emitting heat generated by the burner, opening and closing mechanisms for said stations, a valve in said pipe operated by said opening and closing mechanisms, the diaphragm having an orifice which registers with the inlet of the gas-supply and constantly open thereto.

In testimony whereof I afliX my signature in presence of two witnesses.

FREDERICK W. ROBERTSHAW.

\Vitnesses:

J M. NEsBrr, ALEX. S. MABON. 

